In 2007, the orbiting space telescope GALEX scanned Mira A, an old red dwarf star, as part of an upcoming project to scan the entire sky in ultraviolet light. astronomers were shocked when they discovered that Mira A has a long tail trailing behind it like a comet, which is about 13 light-years long. This star moves through the Universe at an unusually high speed, about 470 thousand kilometers per hour. Before that, it was believed that stars do not have tails.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.